DISCONTINUED OPERATIONS - Balance Sheet Disclosures (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Assets
Total current assets	$ 0	$ 941
Liabilities
Total current liabilities	$ 23	115
Discontinued Operations | RTM
Assets
Prepaid and other current assets		941	$ 0
Total current assets		941	0
Total assets		941	0
Liabilities
Accrued expenses and other current liabilities		115	23
Total current liabilities		115	23
Total liabilities		$ 115	$ 23